FBICR3 report

Dear experts

I have a small doubt in FBICR3 report.

When i am trying to unassign data records from the assigned data records area(would be available in the bottom of the FBICR3 report), i am not able to unassign the whole data from the assigned data records area.

Though i selected "Select all" button in the ltop left corner of the assign data records area and click unassign button , i could able to see only the unassignment happening based on the group numbers.